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A measure of dependence between two compositions

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Author

Summary, in English

A composition is a vector of positive components summing to a constant.

We consider the problem of describing the correlation between two compo-

sitions. Using a bicompositional Dirichlet distribution, we calculate a joint

correlation coefficient, based on the concept of information gain, between two

compositions. Numerical values of the joint correlation coefficient are calcu-

lated for compositions of two and three components.

Publishing year

2009

Language

English

Document type

Working paper

Publisher

Department of Statistics, Lund university

Topic

  • Probability Theory and Statistics

Keywords

  • Dirichlet distribution
  • Correlation
  • Composition
  • Binomial coefficient differentiation
  • Simplex

Status

Published